Next mark the ground with chalk every 3 feet to indicate where to drive the posts.
Retaining wall gravel board.
Then dig the holes for the posts fill them with wet cement and insert the posts immediately.
The neighbour s garden is about a foot lower and the retaining wall has subsided.
One gallon of wood preservative for all cut ends.
Using construction adhesive secure your block caps and create the top layer of your retaining wall.
Three cubic feet of gravel any type for backfilling.
For a block wall 1m high i would start with a course 450mm wide then 2 courses at 330mm then a 215mm and then your coping.
The most important aspect of any retaining wall is how you get rid of the water that will pool behind it.
The principle is that the active earth pressure on the boards and the wind loading on the fence above is resisted by the passive earth pressure in front of the buried section of the posts.
Construction is fast and simple and the materials are much lighter to work with.
Cover the gravel between your retaining wall and landscape with topsoil or sod so your garden will grow against your wall achieving a natural look.
Instead of using stone or timbers make an attractive long lasting retaining wall from pressure treated 2x4s plywood and trim boards.
Hi all im in the process of sorting out the garden and looking at potentially using concrete posts and concrete gravel boards as sleepers won t last long unless they re railway or oak the highest point the wall will retain is 3ft high.
One cubic foot of sand for each post footing.
To build a wood retaining wall clear the area where you want to build measure the length of the space and buy enough boards and posts to complete the wall.
You need a french drain type system with a fine gravel behind the wall.
You ll need to find a guy like my friend brad to help.
How to build a retaining wall.
If i took out the old wall and put in 9ft concrete posts could i use 12 inch concrete gravel boards to make a small retaining wall.
I m replacing a fence.
He doesn t need tons of.
Design and build your retaining wall to slope at a minimum rate of.
Long 1x2 stake for every stanchion.
The technique of using gravel boards spanning between post to retain soil is call a berlin wall in the construction industry.